TRIBE: THE FASHION PEOPLEHQ: The Ritz-CarltonMembers: Calvin Klein, Nadia Swarovski, Tamara Mellon, Donna Karan, Laudomia Pucci, Vivienne Tam, Kenzo.Party of Choice: Cartier, which is flying in a crystal party dome to shelter part of the city’s botanical garden.Spot Them: Nowhere near the art fair.Most Likely To: Actually get a table at Prime One Twelve, then order chopped salad.

TRIBE: THE SUITSHQ: Mandarin OrientalMembers: UBS’s Karl Schweizer; Citicorp’s Mary Hoeveler; execs of Campari, Cartier, BMW.Party of Choice: UBS banquet. Nearly two dozen buffet tables of free food and drink.Spot Them: Fielding requests for access to the lush corporate VIP lounges.Most Likely To: Wonder if they can afford to spend all this money next year if the economy keeps slowing.